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CAT24C44PA-TE13 Datasheet(PDF) 1 Page - Catalyst Semiconductor |
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CAT24C44PA-TE13 Datasheet(HTML) 1 Page - Catalyst Semiconductor |
1 / 9 page © 2005 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 CAT24C44 256-Bit Serial Nonvolatile CMOS Static RAM Doc. No. 1083, Rev. R FEATURES s Single 5V Supply s Infinite EEPROM to RAM Recall s CMOS and TTL Compatible I/O s Low CMOS Power Consumption: –Active: 3 mA Max. –Standby: 30 µA Max. s Power Up/Down Protection s 10 Year Data Retention s JEDEC Standard Pinouts: –8-pin DIP –8-pin SOIC s 100,000 Program/Erase Cycles (EEPROM) s Auto Recall on Power-up s Commercial, Industrial and Automotive Temperature Ranges s "Green" Package Options Available DESCRIPTION The CAT24C44 Serial NVRAM is a 256-bit nonvolatile memory organized as 16 words x 16 bits. The high speed Static RAM array is bit for bit backed up by a nonvolatile EEPROM array which allows for easy trans- fer of data from RAM array to EEPROM (STORE) and from EEPROM to RAM (RECALL). STORE operations are completed in 10ms max. and RECALL operations typically within 1.5 µs. The CAT24C44 features unlim- ited RAM write operations either through external RAM writes or internal recalls from EEPROM. Internal false PIN CONFIGURATION store protection circuitry prohibits STORE operations when VCC is less than 3.5V (typical) ensuring EEPROM data integrity. The CAT24C44 is manufactured using Catalyst’s ad- vanced CMOS floating gate technology. It is designed to endure 100,000 program/erase cycles (EEPROM) and has a data retention of 10 years. The device is available in JEDEC approved 8-pin plastic DIP and SOIC pack- ages. PIN FUNCTIONS Pin Name Function SK Serial Clock DI Serial Input DO Serial Data Output CE Chip Enable RECALL Recall STORE Store VCC +5V VSS Ground SOIC Package (S, V, GV) DI DO 1 2 3 4 CE SK RECALL VSS VCC STORE 8 7 6 5 1 2 3 4 8 7 6 5 CE SK DI DO VCC RECALL VSS STORE DIP Package (P, L, GL) |
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